US20050185700A1 - Method and apparatus for receiving a signal - Google Patents

Method and apparatus for receiving a signal Download PDF

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Publication number
US20050185700A1
US20050185700A1 US10786569 US78656904A US2005185700A1 US 20050185700 A1 US20050185700 A1 US 20050185700A1 US 10786569 US10786569 US 10786569 US 78656904 A US78656904 A US 78656904A US 2005185700 A1 US2005185700 A1 US 2005185700A1
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Prior art keywords
code
signal
block
multimode
signals
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US10786569
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US7286592B2 (en )
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Samuli Pietila
Harri Valio
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RPX Corp
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Nokia Oy AB
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/24Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/30Acquisition or tracking or demodulation of signals transmitted by the system code related
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/33Multimode operation in different systems which transmit time stamped messages, e.g. GPS/GLONASS
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/13Receivers
    • G01S19/35Constructional details or hardware or software details of the signal processing chain
    • G01S19/37Hardware or software details of the signal processing chain
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • H04B1/707Spread spectrum techniques using direct sequence modulation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70707Efficiency-related aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B2201/00Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70715Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with application-specific features
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J13/00Code division multiplex systems
    • H04J13/10Code generation

Abstract

The present invention provides a method for a flexible multimode operation of spread spectrum receivers, e.g., global navigation satellite system (GNSS) receivers, using a shared circuitry hardware configuration of the receiver for processing of different types of code division multiple access (CDMA) signals. According to said method the receiver utilizes shared channel circuitry to receive signals of different CDMA types providing a flexible multimode operation. The present invention provides a way to select the received signal type for each channel by replacing the dedicated channels with multimode channels suitable to multiple types of receiver signals. The multimode receiver is more flexible to operate in varying reception conditions. By utilizing shared channel circuitry the hardware size is kept small.

Description

    FIELD OF THE INVENTION
  • [0001]
    This invention generally relates to a spread spectrum receiver, and more specifically to a multimode operation of the receiver using a shared circuitry hardware configuration.
  • BACKGROUND OF THE INVENTION
  • [0002]
    1. Field of Technology and Problem Formulation
  • [0003]
    It is desirable to have a spread spectrum receiver capable of receiving at least two (or more) types of code division multiple access (CDMA) signals. For example, dual mode GPS (global positioning system)/Galileo receivers must be able to receive both GPS and Galileo signals simultaneously. An obvious approach used so far is combining a GPS receiver and a Galileo receiver, so that some hardware receiving channels are dedicated to receive a GPS signal, and some channels are dedicated to receive a Galileo signal. For example, a 16-channel receiver can have 8 GPS channels and 8 Galileo channels. However, in some situations it might be desirable to receive e.g., 12 Galileo signals and 4 GPS signals due to DOP (dilution of precision) or signal blocking conditions. With the 8 GPS channels plus 8 Galileo channels hardware this is impossible. Therefore, a more flexible multimode operation of the spread spectrum receiver and hardware architecture is desirable.
  • [0004]
    2. Prior Art
  • [0005]
    An example of a prior art solution is demonstrated in FIGS. 1 and 2. FIG. 1 is a block diagram representing one example of a typical operation of a global navigation satellite system receiver 10 with dedicated M GPS receiving channel blocks 16-1, 16-2, . . . , 16-M and dedicated N Galileo receiving channel blocks 18-1, 18-2, . . . , 18-N, wherein M is an integer of at least a value of one and N is an integer of at least a value of one. Typical operation includes receiving the radio frequency signal and converting said radio frequency signal to a radio frequency electrical signal 11 a by an antenna 11 followed by converting said radio frequency electrical signal 11 a to a digital intermediate frequency (IF) signal 14 by a preprocessor 12 and providing said digital IF signal 14 to the dedicated M GPS receiving channel blocks 16-1, 16-2, . . . , 16-M and to the dedicated N Galileo receiving channel blocks 18-1, 18-2, . . . , 18-N, which normally exchange information with the receiver processing block 22 during their operation.
  • [0006]
    FIG. 2 is a block diagram representing an example of one of the dedicated GPS receiving channel blocks 16-1, 16-2, . . . , 16-M or the dedicated Galileo receiving channel blocks 18-1, 18-2, . . . , 18-N shown in FIG. 1. As seen from FIG. 2, the only difference between the GPS receiving channel blocks 16-1, 16-2, . . . , 16-M and the Galileo receiving channel blocks 18-1, 18-2, . . . , 18-N is in a code generating block 24 which uses a dedicated GPS code generator 28-1 for generating a GPS code signal 42 in case of the GPS receiving channel blocks 16-1, 16-2, . . . , 16-M and a dedicated Galileo code generator 28-2 for generating a Galileo code signal 44 in case of the Galileo receiving channel blocks 18-1, 18-2, . . . , 18-N, respectively. All other components including an integrating and damping block 32 and a residual carrier removing block 25 as well as a frequency control signal 34, a code control signal 38, a data intermediate signal 36, a code and carrier measurement signal 37 and dump signals 46-1, 46-2, . . . , 46-P (P is an integer of at least a value of one) perform identical functions for both GPS and Galileo receiving channel blocks 16-1, 16-2, . . . , 16-M, 18-1, 18-2, . . . , 18-N.
  • [0007]
    FIGS. 1 and 2 demonstrate only one example for implementing the global navigation satellite system receiver 10 per the prior art. It is noted that details incorporated in blocks 12 and 16-1, 16-2, . . . , 16-M, 18-1, 18-2, . . . , or 18-N are provided for reference only and represent only one example among many others for implementation of these blocks.
  • SUMMARY OF THE INVENTION
  • [0008]
    It is now invented a novel method for providing a multimode operation of a spread spectrum receiver, e.g., a global navigation satellite system (GNSS) receiver, using a shared circuitry hardware configuration of said receiver.
  • [0009]
    According to a first aspect of the invention, a multimode spread spectrum receiver with a shared circuitry operation, capable of receiving at least two types of code division multiple access (CDMA) signals, comprises: an antenna, responsive to a radio frequency signal containing said at least two types of code division multiple access (CDMA) signals, for providing a radio frequency electrical signal; a preprocessor, responsive to the radio frequency electrical signal, for providing a digital signal; and at least one multimode receiving channel block, responsive to the digital signal and selecting, based on a predetermined selection criteria, one of at least two types of coding corresponding to one of said at least two types code division multiple access (CDMA) signals and utilizing said coding for further processing of said digital signal by said at least one multimode receiving block using said shared circuitry operation.
  • [0010]
    According further to the first aspect of the invention, the digital signal may be a digital intermediate frequency signal, said selection may be performed by the at least one multimode receiving channel block in response to a mode selection signal or to a mode-generating selection signal and finally said at least one multimode receiving channel block may generate, based on said selection, and provide internally one of the at least two code signals to said at least one multimode receiving channel block for implementing said further processing. Further, the at least one multimode receiving channel block may be further responsive to a code control signal and providing a code and carrier measurement signal. Still further, the multimode receiver may further comprise a receiver processing block, responsive to the code and carrier measurement signal, for providing the code control signal, a frequency control signal, and the mode selection signal or the mode-generating selection signal. Yet still further, the multimode receiver may further comprise: a residual carrier removing block, responsive to the digital intermediate frequency signal, for providing a data intermediate signal; and an integration and dumping block responsive to the data intermediate signal, to said one of the at least two code signals, for providing P dump signals to the receiver processing block, wherein P is an integer of at least a value of one.
  • [0011]
    Further according to the first aspect of the invention, the at least one multimode receiving channel block may comprise: a code numerically controlled oscillator block, responsive to the code control signal, for providing a numerically controlled oscillator clock signal; a first code generator, responsive to the numerically controlled oscillator clock signal, for providing a first one of the at least two code signals for a corresponding first one of the at least two types of the code division multiple access receiver processing; a second code generator responsive to the numerically controlled oscillator clock signal, for providing a second one of the at least two code signals for a corresponding second one of the at least two types of the code division multiple access receiver processing; and a code selector, responsive to the mode selection signal, to said first one of the at least two code signals and to said second one of the at least two code signals, for providing said first one of the at least two code signals or said second one of the at least two code signals, selected by the code selector based on the mode selection signal, for further processing by the at least one multimode receiving channel block using said shared circuitry operation. Further, the first code generator, the second code generator or both code generators may contain binary offset carrier capabilities. Yet still further, the first one of the at least two code signals may be for global positioning system receiver processing and the second one of the at least two code signals may be for Galileo receiver processing.
  • [0012]
    Still further according to the first aspect of the invention, the at least one multimode receiving channel block may comprise: a code numerically controlled oscillator block responsive to the code control signal, for providing a numerically controlled oscillator clock signal; and a universal code generator, responsive to the numerically controlled oscillator clock signal and to the mode-generating selection signal, for generating and providing, based on the mode-generating selection signal, a first one of the at least two code signals for a corresponding first one of the at least two types of the code division multiple access receiver processing or a second one of the at least two code signals for a corresponding second one of the at least two types of the code division multiple access receiver processing for further processing by the at least one multimode receiving channel block using said shared circuitry operation. Further still, the universal code generator may contain binary offset carrier capabilities.
  • [0013]
    According further to the first aspect of the invention, the receiver may be a multimode global navigation satellite system receiver. Yet still further, a first one of the at least two code signals may be for global positioning system receiver processing and a second one of the at least two code signals may be for Galileo receiver processing.
  • [0014]
    According to a second aspect of the invention, a method for a shared circuitry operation of a multimode spread spectrum receiver, capable of receiving at least two types of code division multiple access signals, comprises:receiving the radio frequency signal containing said at least two types of code division multiple access signals by an antenna of the multimode spread spectrum receiver and converting said radio frequency signal to a radio frequency electrical signal; converting the radio frequency electrical signal to a digital signal by a preprocessor of the multimode spread spectrum receiver and providing said digital signal to the at least one multimode receiving channel block; and selecting by at least one multimode receiving channel block, based on a predetermined selection criteria, one of at least two types of coding corresponding to one of said at least two types code division multiple access signals and utilizing said coding for further processing of said digital signal by said at least one multimode receiving block using said shared circuitry operation. Further, the digital signal may be a digital intermediate frequency signal, said selection may be performed by the at least one multimode receiving channel block in response to a mode selection signal or to a mode-generating selection signal and finally said at least one multimode receiving channel block may generate, based on said selection, and provide internally one of the at least two code signals to said at least one multimode receiving channel block for implementing said further processing.
  • [0015]
    According further to the second aspect of the invention, the selection by at least one multimode receiving block, based on a predetermined selection criteria, of one of at least two types of coding may comprise: generating a first one of the at least two code signals for a corresponding first one of the at least two types of the code division multiple access receiver processing by a first code generator and generating a second one of the at least two code signals for a corresponding second one of the at least two types of the code division multiple access receiver processing by a second code generator and providing said first one of the at least two code signals and said second one of the at least two code signals to a code selector of the at least one multimode receiving channel block, wherein said first one of the at least two code signals and said second one of the at least two code signals are parts of said at least one multimode receiving channel block; selecting said first one of the at least two code signals or said second one of the at least two code signals by the code selector; and providing the selected said first one of the at least two code signals or said second one of the at least two code signals for further processing by the at least one multimode receiving channel block using said shared circuitry operation. Further, said selecting of said first one of the at least two code signals or said second one of the at least two code signals by the code selector may be based on the mode selection signal provided to the code selector by a receiver processing block.
  • [0016]
    Further according to the second aspect of the invention, before generating the first one of the at least two code signals and the second one of the at least two code signals, the method may further comprise: providing a code control signal to a code numerically controlled oscillator block of the at least one multimode receiving channel block; and generating, in response to said code control signal, a numerically controlled oscillator clock signal by the code numerically controlled oscillator block and providing the numerically controlled oscillator clock signal to the first code generator and to the second code generator. Further, said code control signal may be provided to the code numerically controlled oscillator block by a receiver processing block. Still further,
  • [0017]
    Still further according to the second aspect of the invention, the further processing may be performed by an integrating and dumping block of the at least one multimode receiving channel block. Further, before providing the code control signal, the method may further comprise: generating a data intermediate signal by removing a residual carrier frequency from the digital intermediate frequency signal by a residual carrier removing block of the at least one multimode receiving channel block and providing said data intermediate signal to the integrating and dumping block for further processing.
  • [0018]
    According further to the second aspect of the invention, the selection by at least one multimode receiving block, based on a predetermined selection criteria, of one of at least two types of coding may comprise: generating a first one of the at least two code signals for a corresponding first one of the at least two types of the code division multiple access receiver processing or a second one of the at least two code signals for a corresponding second one of the at least two types of the code division multiple access receiver processing by a universal code generator of the at least one multimode receiving channel block; and providing the first one of the at least two code signals or the second one of the at least two code signals by the universal code generator for further processing by the at least one multimode receiving channel block using said shared circuitry operation. Further, generating the first one of the at least two code signals or the second one of the at least two code signals by the universal code generator may be based on the mode-generating selection signal provided to the universal code generator by a receiver processing block. Still further, before generating the first one of the at least two code signals and the second one of the at least two code signals, the method may further comprise: providing a code control signal to a code numerically controlled oscillator block of the at least one multimode receiving channel block; and generating, in response to said code control signal, a numerically controlled oscillator clock signal by the code numerically controlled oscillator block and providing the numerically controlled oscillator clock signal to the universal code generator. Yet still further, said code control signal may be provided to the code numerically controlled oscillator block by a receiver processing block.
  • [0019]
    According still further to the second aspect of the invention, the further processing may be performed by an integrating and dumping block of the at least one multimode receiving channel block. Further, before providing the code control signal, the method may further comprise: generating a data intermediate signal by removing a residual carrier frequency from the digital intermediate frequency signal by a residual carrier removing block of the at least one multimode receiving channel block and providing said data intermediate signal to the integrating and dumping block for further processing.
  • [0020]
    According further still to the second aspect of the invention, said receiver may be a multimode global navigation satellite system receiver. Still further, a first one of the at least two code signals may be for global positioning system receiver processing and a second one of the at least two code signals may be for Galileo receiver processing.
  • [0021]
    According to a third aspect of the invention, a computer program product comprises: a computer readable storage structure embodying computer program code thereon for execution by a computer processor with said computer program code characterized in that it includes instructions for performing the steps of the method of the second aspect indicated as being performed by the multimode spread spectrum receiver, or by the multimode receiving channel block of said spread spectrum receiver, or by a terminal containing said spread spectrum receiver.
  • [0022]
    According to a fourth aspect of the invention, a system for communicating at least two types of code division multiple access signals received by a multimode spread spectrum receiver with a shared circuitry operation, comprises: at least one satellite, for providing said at least two types of code division multiple access signals, or at least two satellites each providing one of said at least two types of the code division multiple access signals; at least one base station, for providing said at least two types of the code division multiple access signals used for mobile communications; and a terminal, responsive to said at least two different types of the code division multiple access signals, wherein said terminal containing said multimode spread spectrum receiver capable of receiving said at least two types of code division multiple access signals using at least one multimode receiving channel block, responsive to the digital signal indicative of one of said at least two different types of the code division multiple access signals and selecting, based on a predetermined selection criteria, one of at least two types of coding corresponding to said one of the at least two types code division multiple access signals and utilizing said coding for further processing of said digital signal by said at least one multimode receiving block using said shared circuitry operation.
  • [0023]
    According to a fifth aspect of the invention, a multimode receiving module with a shared circuitry operation capable of receiving at least two types of code division multiple access signals and contained in a multimode spread spectrum receiver, comprises: at least one multimode receiving channel block, responsive to the digital signal containing one of said at least two types of the code division multiple access signals and selecting, based on a predetermined selection criteria, one of at least two types of coding corresponding to said one of at least two types code division multiple access signals and utilizing said coding for further processing of said digital signal by said at least one multimode receiving block using said shared circuitry operation, wherein said multimode receiving module is removable from said multimode spread spectrum receiver.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0024]
    For a better understanding of the nature and objects of the present invention, reference is made to the following detailed description taken in conjunction with the following drawings, in which:
  • [0025]
    FIG. 1 is a block diagram representing an example of a global navigation satellite system receiver with dedicated GPS and Galileo receiving channel blocks, according to the prior art.
  • [0026]
    FIG. 2 is a block diagram representing an example of a dedicated GPS receiving channel block or a Galileo receiving channel block, according to the prior art.
  • [0027]
    FIG. 3 is a block diagram representing an example of a multimode global navigation satellite system receiver with a shared circuitry operation, capable of generating and providing GPS or Galileo code signals, according to the present invention.
  • [0028]
    FIG. 4 is a block diagram representing an example of a multimode receiving channel block, a part of a multimode global navigation satellite system receiver, with a shared circuitry operation, capable of generating and providing a GPS code signal or a Galileo code signal, according to the present invention.
  • [0029]
    FIG. 5 is a block diagram representing an alternative example for a code generating block of a multimode receiving channel block, according to the present invention.
  • [0030]
    FIG. 6 shows an example of a flow chart for generating and providing a GPS code signal or a Galileo code signal by a multimode receiving channel block with a shared circuitry operation, according to the present invention.
  • [0031]
    FIG. 7 shows an alternative example of a flow chart for generating and providing a GPS code signal or a Galileo code signal by a code generating block of a multimode receiving channel block, according to the present invention.
  • [0032]
    FIG. 8 shows an example of a terminal with a spread spectrum multimode CDMA receiver using a shared circuitry hardware configuration of the receiver for multimode operation processing of different types of code division multiple access (CDMA) signals from satellites or a base station.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0033]
    The present invention provides a method for a flexible multimode operation of spread spectrum receivers, e.g., global navigation satellite system (GNSS) receivers using a shared circuitry hardware configuration of the receiver for processing of different types of code division multiple access (CDMA) signals. According to said method the receiver utilizes shared channel circuitry to receive signals from different satellite systems providing a flexible multimode operation. The present invention provides a way to select the received signal type (e.g., GPS or Galileo) for each channel. By replacing the dedicated GPS/Galileo channels with multimode channels suitable to both receiver signals or, in a general case, by replacing the dedicated channels with multimode channels suitable to multiple types (more than two) of receiver signals, the receiver is more flexible to operate in varying reception conditions. By utilizing shared channel circuitry the hardware size is kept small.
  • [0034]
    FIG. 3 is a block diagram representing one example among others of a multimode global navigation satellite system receiver 10 a with a shared circuitry operation, capable of generating and providing GPS or Galileo code signals, according to the present invention. The key difference between FIG. 3 and FIG. 1 describing the prior art is that the dedicated GPS receiving channel blocks 16-1, 16-2, . . . , 16-M and the Galileo receiving channel blocks 18-1, 18-2, . . . , 18-N of FIG. 1 are substituted by multimode receiving channel blocks 20-1, 20-2, . . . , 20-K (K is an integer of at least a value of one), each capable of both GPS and Galileo signal processing.
  • [0035]
    FIG. 4 is a block diagram representing one example among many others of a multimode receiving channel block 20-1, 20-2, . . . , or 20-K with a shared circuitry operation, capable of generating and providing a GPS code signal 42 or a Galileo code signal 44, according to the present invention. Again, the key difference between FIG. 4 and FIG. 2 describing the prior art is that the multimode receiving channel block 20-1, 20-2, . . . , or 20-K has a modified code generation block 24 a instead of the block 24. The code generation block 24 a consists of a code numerically controlled oscillator (NCO) block 26, which generates a numerically controlled oscillator (NCO) clock signal 40 in response to the code control signal 38 from the receiver processing block 22 as in the prior art. But then said NCO clock signal 40 is provided to both a GPS code generator 28 a and to a Galileo code generator 28 b. The GPS code generator 28 a and a Galileo code generator 28 b generate a GPS code signal 42 and a Galileo code signal 44, respectively, and provide both signals 42 and 44 to a code selector 30. The code selector 30 selects the GPS code signal 42 or the Galileo code signal 44 based on a mode selection signal 31 provided to the code selector 30 by the receiver processing block 22. Finally, the selected GPS code signal 42 or the Galileo code signal 44 is provided to the integrating and dumping block 32 which performs further processing as in the prior art (see FIG. 2).
  • [0036]
    FIG. 5 is a block diagram representing an alternative example among others for implementing of a code generating block 24 b of a multimode receiving channel block 20-1, 20-2, . . . , or 20-K with a shared circuitry operation, capable of generating and providing the GPS code signal 42 or the Galileo code signal 44, according to the present invention. The difference between the block 24 b and the block 24 a of FIG. 4 is that a universal code generator 28 c of the block 24 b shown in FIG. 5 performs the functions performed by the blocks 28 a, 28 b and 30 of FIG. 4. In particular, the NCO clock signal 40 is provided by the code NCO block 26 only to the universal code generator 28 c, which generates the GPS code signal 42 or the Galileo code signal 44 based on a mode-generating selection signal 33 provided to the universal code generator 28 c by the receiver processing block 22. And finally, the generated GPS code signal 42 or the Galileo code signal 44 is provided to the integrating and dumping block 32 which performs further processing as in the prior art (see FIG. 2).
  • [0037]
    FIG. 6 shows an example of a flow chart for generating and providing the GPS code signal 42 or the Galileo code signal 44 by the multimode receiving channel block 20-1, 20-2, . . . , or 20-K with the shared circuitry operation as shown in FIG. 4, according to the present invention. The flow chart of FIG. 6 represents only one possible scenario among others. In a method according to the present invention, in a first step 50, the radio frequency signal is received by the antenna 11 and converted to the radio frequency electrical signal 11 a. In a next step 52, said radio frequency electrical signal 11 a is converted to a digital intermediate frequency signal 24 by a preprocessor 12 and provided to the residual carrier removing (RCR) block 25 of the multimode receiving channel block 20-1, 20-2, . . . , or 20-K. In a next step 54, the RCR block 25 removes a residual carrier frequency from the digital IF signal 14 using the frequency control signal 34 provided to the RCR block 25 by the receiver processing block 22 thus generating the data intermediate signal 36 and providing said signal 36 to the integrating and dumping block 32 for further processing. In a next step 55, the code control signal 38 is provided to the code NCO block 26 by the receiver processing block 22. In a next step 56, the NCO block 26 generates the NCO clock signal 40 in response to the code control signal 38 from the receiver processing block 22 and provides said NCO clock signal 40 to both the GPS code generator 28 a and to the Galileo code generator 28 b. In a next step 58, the GPS code generator 28 a and a Galileo code generator 28 b generate the GPS code signal 42 and the Galileo code signal 44, respectively, and provide both signals 42 and 44 to the code selector 30. In a next step 60, the code selector 30 selects the GPS code signal 42 or the Galileo code signal 44 based on the mode selection signal 31 provided to the code selector 30 by the receiver processing block 22. In a next step 62, the selected GPS code signal 42 or the Galileo code signal 44 is provided to the integrating and dumping block 32 of the multimode receiving channel block 20-1, 20-2, . . . , or 20-K for further processing. Finally, in a next step 64, dump signals 46-1, 46-2, . . . , 46-P are generated, in response to the signals 42 or 44 and to the data intermediate signal 36, and provided to the receiver processing block 22.
  • [0038]
    FIG. 7 shows an alternative example among many others of a flow chart for generating and providing the GPS code signal 42 or the Galileo code signal 44 by the multimode receiving channel block 20-1, 20-2, . . . , or 20-K with the shared circuitry operation as shown in FIG. 5, according to the present invention. First four steps 50 through 55 are the same as in FIG. 6 and are described above. In a next step 66, the NCO block 26 generates the NCO clock signal 40 in response to the code control signal 38 from the receiver processing block 22 and provides the NCO clock signal 40 to the universal code generator 28 c. In a next step 68, the mode-generating selection signal 33 is provided to the universal code generator 28 c by the receiver processing block 22. In a next step 70, the code generator 28 c generates the GPS code signal 42 or the Galileo code signal 44 in response to the mode-generating selection signal 33. The last two steps 62 and 64 are the same as in FIG. 6 and are described above.
  • [0039]
    There are many variations of the scenarios described above, according to the present invention. For example, the code generator blocks 28 a, 28 b and 28 c can also include binary offset carrier (BOC) generation. Also, it is not necessary that all channels are multimode channels as presented in FIG. 3. It is also possible to have a mixture of dedicated channels and multimode channels.
  • [0040]
    Although GPS and Galileo satellite navigation systems have been used as an example in the description, it is obvious that the present invention can be used equally well with other navigation systems or more generally to any communication system utilizing a multimode spread spectrum receiver. An example of such a system is shown in FIG. 8. A terminal (or a user equipment, UE) 72 is a communication device, such as a mobile device or a mobile phone, containing a multimode CDMA receiver 73 according to the present invention. The multimode CDMA receiver 73 can be, for instance, the multimode global navigation satellite system (GNSS) receiver 10 a described in the examples of FIGS. 3 through 7. Moreover, said multimode CDMA receiver 73 contains a multimode receiving module 74 with the key innovation as described in the present invention. The block 74 can be built as a removable unit. The multimode receiving module 74 can be, for example, a combination of blocks 20-1, 20-2, . . . , and 20-K as presented in FIG. 3 for the multimode GNSS receiver 10 a. FIG. 8 shows at least two satellites (e.g., GPS application typically requires 3 satellites) 76 sending two different types of CDMA signals, CDMA 1 and CDMA 2 satellite signals 80 a and 80 b, respectively, to the CDMA receiver 73. FIG. 8 also shows a base station 78, which communicates with the terminal 72 by sending, e.g., a mobile CDMA communication signal 82 a to the multimode CDMA receiver 73 and receiving back the outgoing communication signal 82 b from the terminal 72. Said signal 82 a can be of various CDMA types and is processed by the multimode receiving module as described in the present invention.
  • [0041]
    As explained above, the invention provides both a method and corresponding equipment consisting of various modules providing the functionality for performing the steps of the method. The modules may be implemented as hardware, or may be implemented as software or firmware for execution by a processor. In particular, in the case of firmware or software, the invention can be provided as a computer program product including a computer readable storage structure embodying computer program code, i.e. the software or firmware thereon for execution by a computer processor provided with the terminal 72, with the CDMA receiver 73 (e.g., multimode global navigation satellite system receiver 10 a) or with the multimode receiving module 74 (e.g., multimode receiving channel blocks 20-1, 20-2, . . . and 20-K).

Claims (31)

  1. 1. A multimode spread spectrum receiver with a shared circuitry operation, capable of receiving at least two types of code division multiple access (CDMA) signals, comprising:
    an antenna, responsive to a radio frequency signal containing said at least two types of code division multiple access (CDMA) signals, for providing a radio frequency electrical signal;
    a preprocessor, responsive to the radio frequency electrical signal, for providing a digital signal; and
    at least one multimode receiving channel block, responsive to the digital signal and selecting, based on a predetermined selection criteria, one of at least two types of coding corresponding to one of said at least two types code division multiple access (CDMA) signals and utilizing said coding for further processing of said digital signal by said at least one multimode receiving block using said shared circuitry operation.
  2. 2. The multimode receiver of claim 1, wherein the digital signal is a digital intermediate frequency signal, wherein said selection is performed by the at least one multimode receiving channel block in response to a mode selection signal or to a mode-generating selection signal and wherein said at least one multimode receiving channel block generates, based on said selection, and provides internally one of the at least two code signals to said at least one multimode receiving channel block for implementing said further processing.
  3. 3. The multimode receiver of claim 2, wherein the at least one multimode receiving channel block is further responsive to a code control signal and providing a code and carrier measurement signal.
  4. 4. The multimode receiver of claim 3, further comprising:
    a receiver processing block, responsive to the code and carrier measurement signal, for providing the code control signal, a frequency control signal, and the mode selection signal or the mode-generating selection signal.
  5. 5. The multimode receiver of claim 4, further comprising:
    a residual carrier removing block, responsive to the digital intermediate frequency signal, for providing a data intermediate signal; and
    an integration and dumping block responsive to the data intermediate signal, to said one of the at least two code signals, for providing P dump signals to the receiver processing block, wherein P is an integer of at least a value of one.
  6. 6. The multimode receiver of claim 4, wherein the at least one multimode receiving channel block comprises:
    a code numerically controlled oscillator block, responsive to the code control signal, for providing a numerically controlled oscillator clock signal;
    a first code generator, responsive to the numerically controlled oscillator clock signal, for providing a first one of the at least two code signals for a corresponding first one of the at least two types of the code division multiple access receiver processing;
    a second code generator responsive to the numerically controlled oscillator clock signal, for providing a second one of the at least two code signals for a corresponding second one of the at least two types of the code division multiple access receiver processing; and
    a code selector, responsive to the mode selection signal, to said first one of the at least two code signals and to said second one of the at least two code signals, for providing said first one of the at least two code signals or said second one of the at least two code signals, selected by the code selector based on the mode selection signal, for further processing by the at least one multimode receiving channel block using said shared circuitry operation.
  7. 7. The multimode receiver of claim 6, wherein the first code generator, the second code generator or both code generators contain binary offset carrier capabilities.
  8. 8. The multimode receiver of claim 6, wherein the first one of the at least two code signals is for global positioning system receiver processing and the second one of the at least two code signals is for Galileo receiver processing.
  9. 9. The multimode receiver of claim 2, wherein the at least one multimode receiving channel block comprises:
    a code numerically controlled oscillator block responsive to the code control signal, for providing a numerically controlled oscillator clock signal; and
    a universal code generator, responsive to the numerically controlled oscillator clock signal and to the mode-generating selection signal, for generating and providing, based on the mode-generating selection signal, a first one of the at least two code signals for a corresponding first one of the at least two types of the code division multiple access receiver processing or a second one of the at least two code signals for a corresponding second one of the at least two types of the code division multiple access receiver processing for further processing by the at least one multimode receiving channel block using said shared circuitry operation.
  10. 10. The multimode receiver of claim 9, wherein the universal code generator contains binary offset carrier capabilities.
  11. 11. The multimode spread spectrum receiver of claim 1, wherein said receiver is a multimode global navigation satellite system receiver.
  12. 12. The multimode receiver of claim 11, wherein a first one of the at least two code signals is for global positioning system receiver processing and a second one of the at least two code signals is for Galileo receiver processing.
  13. 13. A method for a shared circuitry operation of a multimode spread spectrum receiver, capable of receiving at least two types of code division multiple access signals, comprising:
    receiving the radio frequency signal containing said at least two types of code division multiple access signals by an antenna of the multimode spread spectrum receiver and converting said radio frequency signal to a radio frequency electrical signal;
    converting the radio frequency electrical signal to a digital signal by a preprocessor of the multimode spread spectrum receiver and providing said digital signal to the at least one multimode receiving channel block; and
    selecting by at least one multimode receiving channel block, based on a predetermined selection criteria, one of at least two types of coding corresponding to one of said at least two types code division multiple access signals and utilizing said coding for further processing of said digital signal by said at least one multimode receiving block using said shared circuitry operation.
  14. 14. The method of claim 13, wherein the digital signal is a digital intermediate frequency signal, wherein said selection is performed by the at least one multimode receiving channel block in response to a mode selection signal or to a mode-generating selection signal and wherein said at least one multimode receiving channel block generates, based on said selection, and provides internally one of the at least two code signals to said at least one multimode receiving channel block for implementing said further processing.
  15. 15. The method of claim 14, wherein said selection by at least one multimode receiving block, based on a predetermined selection criteria, of one of at least two types of coding comprises:
    generating a first one of the at least two code signals for a corresponding first one of the at least two types of the code division multiple access receiver processing by a first code generator and generating a second one of the at least two code signals for a corresponding second one of the at least two types of the code division multiple access receiver processing by a second code generator and providing said first one of the at least two code signals and said second one of the at least two code signals to a code selector of the at least one multimode receiving channel block, wherein said first one of the at least two code signals and said second one of the at least two code signals are parts of said at least one multimode receiving channel block;
    selecting said first one of the at least two code signals or said second one of the at least two code signals by the code selector; and
    providing the selected said first one of the at least two code signals or said second one of the at least two code signals for further processing by the at least one multimode receiving channel block using said shared circuitry operation.
  16. 16. The method of claim 15, wherein said selecting of said first one of the at least two code signals or said second one of the at least two code signals by the code selector is based on the mode selection signal provided to the code selector by a receiver processing block.
  17. 17. The method of claim 15, wherein before generating the first one of the at least two code signals and the second one of the at least two code signals, the method further comprises:
    providing a code control signal to a code numerically controlled oscillator block of the at least one multimode receiving channel block; and
    generating, in response to said code control signal, a numerically controlled oscillator clock signal by the code numerically controlled oscillator block and providing the numerically controlled oscillator clock signal to the first code generator and to the second code generator.
  18. 18. The method of claim 17, wherein said code control signal is provided to the code numerically controlled oscillator block by a receiver processing block.
  19. 19. The method of claim 15, wherein the further processing is performed by an integrating and dumping block of the at least one multimode receiving channel block.
  20. 20. The method of claim 19, wherein before providing the code control signal, the method further comprises:
    generating a data intermediate signal by removing a residual carrier frequency from the digital intermediate frequency signal by a residual carrier removing block of the at least one multimode receiving channel block and providing said data intermediate signal to the integrating and dumping block for further processing.
  21. 21. The method of claim 14, wherein said selection by at least one multimode receiving block, based on a predetermined selection criteria, of one of at least two types of coding comprises: generating a first one of the at least two code signals for a corresponding first one of the at least two types of the code division multiple access receiver processing or a second one of the at least two code signals for a corresponding second one of the at least two types of the code division multiple access receiver processing by a universal code generator of the at least one multimode receiving channel block; and
    providing the first one of the at least two code signals or the second one of the at least two code signals by the universal code generator for further processing by the at least one multimode receiving channel block using said shared circuitry operation.
  22. 22. The method of claim 21, wherein generating the first one of the at least two code signals or the second one of the at least two code signals by the universal code generator is based on the mode-generating selection signal provided to the universal code generator by a receiver processing block.
  23. 23. The method of claim 21, wherein before generating the first one of the at least two code signals and the second one of the at least two code signals, the method further comprises:
    providing a code control signal to a code numerically controlled oscillator block of the at least one multimode receiving channel block; and
    generating, in response to said code control signal, a numerically controlled oscillator clock signal by the code numerically controlled oscillator block and providing the numerically controlled oscillator clock signal to the universal code generator.
  24. 24. The method of claim 21, wherein said code control signal is provided to the code numerically controlled oscillator block by a receiver processing block.
  25. 25. The method of claim 21, wherein the further processing is performed by an integrating and dumping block of the at least one multimode receiving channel block.
  26. 26. The method of claim 25, wherein before providing the code control signal, the method further comprises:
    generating a data intermediate signal by removing a residual carrier frequency from the digital intermediate frequency signal by a residual carrier removing block of the at least one multimode receiving channel block and providing said data intermediate signal to the integrating and dumping block for further processing.
  27. 27. The method of claim 13, wherein said receiver is a multimode global navigation satellite system receiver.
  28. 28. The method of claim 27, wherein a first one of the at least two code signals is for global positioning system receiver processing and a second one of the at least two code signals is for Galileo receiver processing.
  29. 29. A computer program product comprising: a computer readable storage structure embodying computer program code thereon for execution by a computer processor with said computer program code, characterized in that it includes instructions for performing the steps of the method of claim 13 indicated as being performed by the multimode spread spectrum receiver, or by the multimode receiving channel block of said spread spectrum receiver, or by a terminal containing said spread spectrum receiver.
  30. 30. A system for communicating at least two types of code division multiple access signals received by a multimode spread spectrum receiver with a shared circuitry operation, comprising:
    at least one satellite, for providing said at least two types of code division multiple access signals, or at least two satellites each providing one of said at least two types of the code division multiple access signals;
    at least one base station, for providing said at least two types of the code division multiple access signals used for mobile communications; and
    a terminal, responsive to said at least two different types of the code division multiple access signals, wherein said terminal containing said multimode spread spectrum receiver capable of receiving said at least two types of code division multiple access signals using at least one multimode receiving channel block, responsive to the digital signal indicative of one of said at least two different types of the code division multiple access signals and selecting, based on a predetermined selection criteria, one of at least two types of coding corresponding to said one of the at least two types code division multiple access signals and utilizing said coding for further processing of said digital signal by said at least one multimode receiving block using said shared circuitry operation.
  31. 31. A multimode receiving module with a shared circuitry operation capable of receiving at least two types of code division multiple access signals and contained in a multimode spread spectrum receiver, comprising:
    at least one multimode receiving channel block, responsive to the digital signal containing one of said at least two types of the code division multiple access signals and selecting, based on a predetermined selection criteria, one of at least two types of coding corresponding to said one of at least two types code division multiple access signals and utilizing said coding for further processing of said digital signal by said at least one multimode receiving block using said shared circuitry operation,
    wherein said multimode receiving module is removable from said multimode spread spectrum receiver.
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EP20050702433 EP1719259A1 (en) 2004-02-24 2005-02-04 A method and apparatus for receiving a signal
CN 201110319152 CN102393527B (en) 2004-02-24 2005-02-04 A method and apparatus for receiving a signal
CN 200580011930 CN1943128B (en) 2004-02-24 2005-02-04 A method and apparatus for receiving a signal
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040165566A1 (en) * 2003-02-22 2004-08-26 Dong-Hoon Lee Dual mode modem and method for integrated cell searching
US20070032266A1 (en) * 2005-08-03 2007-02-08 Kamilo Feher GPS and non GPS position finder, emergency, MIMO, spread spectrum, CDMA, GSM and OFDM
US20080082786A1 (en) * 2006-10-02 2008-04-03 William Stuart Lovell Super-scalable, continuous flow instant logic™ binary circuitry actively structured by code-generated pass transistor interconnects
US20090106535A1 (en) * 2007-10-17 2009-04-23 Chun-Nan Chen Shared processor architecture applied to functional stages configured in a receiver system for processing signals from different transmitter systems and method thereof
US7548787B2 (en) * 2005-08-03 2009-06-16 Kamilo Feher Medical diagnostic and communication system
GB2456150A (en) * 2008-01-03 2009-07-08 Samsung Electronics Co Ltd A transmitter providing a signal indicating a time difference between respective reference clocks of a first and second global navigation satellite system
US20090189808A1 (en) * 2008-01-28 2009-07-30 Mediatek Inc. Gnss data/pilot correlator and code generator thereof
US20090207075A1 (en) * 2008-02-20 2009-08-20 Stuart Riley Sample decimation in a GNSS receiver
US7693229B2 (en) 2004-12-28 2010-04-06 Kamilo Feher Transmission of signals in cellular systems and in mobile networks
US20100099351A1 (en) * 2008-10-22 2010-04-22 Chieh-Chao Liu Receiver applying channel selection filter for receiving satellite signal and receiving method thereof
US7711368B2 (en) 2005-08-03 2010-05-04 Kamilo Feher VoIP multimode WLAN, Wi-Fi, GSM, EDGE, TDMA, spread spectrum, CDMA systems
WO2010068456A1 (en) 2008-11-25 2010-06-17 Qualcomm Incorporated Reconfigurable satellite positioning system receivers
US20100279732A1 (en) * 2009-05-04 2010-11-04 Mikael Hjelm Squaring Loss Inhibition for Low Signal Levels in Positioning Systems
US7885363B2 (en) 2007-10-18 2011-02-08 Mediatek Inc. Correlation device and method for different modulated signals
US8259832B2 (en) 1999-08-09 2012-09-04 Kamilo Feher QAM and GMSK modulation methods
US9307407B1 (en) 1999-08-09 2016-04-05 Kamilo Feher DNA and fingerprint authentication of mobile devices
US9373251B2 (en) 1999-08-09 2016-06-21 Kamilo Feher Base station devices and automobile wireless communication systems
US9813270B2 (en) 1999-08-09 2017-11-07 Kamilo Feher Heart rate sensor and medical diagnostics wireless devices

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7899109B2 (en) * 2006-08-08 2011-03-01 The Aerospace Corporation GPS m-code receiver tracking system
US7706429B2 (en) * 2006-09-19 2010-04-27 Mediatek Inc. BOC signal acquisition and tracking method and apparatus
CN101303403B (en) 2007-06-11 2011-01-26 杭州中科微电子有限公司 Multi-mode satellite navigation receiving radio frequency front end chip
CN101132191B (en) 2007-10-15 2010-06-02 北京航空航天大学 Baseband signal processing method for GNSS receiver
US8571088B2 (en) 2007-11-12 2013-10-29 Qualcomm Incorporated Suppression of multipath effects for received SPS signals
KR100967196B1 (en) 2008-03-06 2010-07-05 한양네비콤주식회사 Apparatus for Tracking GPS and Galileo Signal in GPS/Galileo Receiver
CN101266292B (en) 2008-05-08 2011-01-12 北京航空航天大学 GNSS reflected signal frequency domain processing unit and method
CN101308955B (en) 2008-05-22 2012-08-29 杭州中科微电子有限公司 Radio frequency integrated GPS active antenna
KR101001259B1 (en) 2008-06-30 2010-12-14 한국산업기술대학교산학협력단 Receiver using multiple satelite positioning system
KR101012176B1 (en) 2008-10-13 2011-02-07 재단법인대구경북과학기술원 Global navigation satellite system receiver considering high sensitivity and high acquisition for vehicle location determination and controlling method for the same
CN102183771B (en) * 2011-03-21 2013-02-20 华南理工大学 Realizing method of multi-mode GNSS (Global Navigation Satellite System) software receiver based on multi-core processor
CN102508272B (en) * 2011-11-15 2013-09-04 中国航天科工信息技术研究院 Galileo satellite E1B pseudo code tracking method and device
CN103176196B (en) * 2013-03-04 2016-03-30 北京航空航天大学 A mutual operation of the receiver receiving method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020193108A1 (en) * 2001-05-10 2002-12-19 Robinett Robert L. Multi-mode satellite and terrestrial communication device with position location
US6618434B2 (en) * 2001-05-31 2003-09-09 Quicksilver Technology, Inc. Adaptive, multimode rake receiver for dynamic search and multipath reception
US20060140254A1 (en) * 2004-12-29 2006-06-29 Nokia Corporation Multi-path detection method for CDMA receivers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5663957A (en) * 1995-07-12 1997-09-02 Ericsson Inc. Dual mode satellite/cellular terminal
US6097974A (en) * 1997-12-12 2000-08-01 Ericsson Inc. Combined GPS and wide bandwidth radiotelephone terminals and methods
GB9813390D0 (en) * 1998-06-23 1998-08-19 Koninkl Philips Electronics Nv Telecommunication system with channel sharing
US6714760B2 (en) 2001-05-10 2004-03-30 Qualcomm Incorporated Multi-mode satellite and terrestrial communication device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020193108A1 (en) * 2001-05-10 2002-12-19 Robinett Robert L. Multi-mode satellite and terrestrial communication device with position location
US6618434B2 (en) * 2001-05-31 2003-09-09 Quicksilver Technology, Inc. Adaptive, multimode rake receiver for dynamic search and multipath reception
US20060140254A1 (en) * 2004-12-29 2006-06-29 Nokia Corporation Multi-path detection method for CDMA receivers

Cited By (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8693523B2 (en) 1998-08-10 2014-04-08 Kamilo Feher QAM CDMA and TDMA communication methods
US9813270B2 (en) 1999-08-09 2017-11-07 Kamilo Feher Heart rate sensor and medical diagnostics wireless devices
US9755874B2 (en) 1999-08-09 2017-09-05 Kamilo Feher Digital mobile communication
US9755693B2 (en) 1999-08-09 2017-09-05 Kamilo Feher Remote controlled (RC) air based communication
US9742605B2 (en) 1999-08-09 2017-08-22 Kamilo Feher OFDM mobile networks
US9264877B2 (en) 1999-08-09 2016-02-16 Kamilo Feher Modems for mobile internet and cellular systems
US9571626B1 (en) 1999-08-09 2017-02-14 Kamilo Feher Automobile cellular, WLAN and satellite communications
US9319212B2 (en) 1999-08-09 2016-04-19 Kamilo Feher Fingerprint authenticated touchsceeen contolled cascaded 3G-OFDM mobile systems
US9537700B2 (en) 1999-08-09 2017-01-03 Kamilo Feher Mobile networks and mobile repeaters
US9432152B2 (en) 1999-08-09 2016-08-30 Kamilo Feher Video multimode multimedia data communication systems
US8259832B2 (en) 1999-08-09 2012-09-04 Kamilo Feher QAM and GMSK modulation methods
US9173566B2 (en) 1999-08-09 2015-11-03 Kamilo Feher DNA, blood, heart, glucose, body temperature, skin and other medical diagnostic communications
US9373251B2 (en) 1999-08-09 2016-06-21 Kamilo Feher Base station devices and automobile wireless communication systems
US9307407B1 (en) 1999-08-09 2016-04-05 Kamilo Feher DNA and fingerprint authentication of mobile devices
US9397724B1 (en) 1999-08-09 2016-07-19 Kamilo Feher Transceivers digital mobile communications
US9049985B2 (en) 1999-08-09 2015-06-09 Kamilo Feher Satellite, cellular and Wi-Fi mobile multimode transmission and reception methods
US20040165566A1 (en) * 2003-02-22 2004-08-26 Dong-Hoon Lee Dual mode modem and method for integrated cell searching
US8185069B1 (en) 2004-10-05 2012-05-22 Kamilo Feher Wired and wireless 4G and 3G cellular, mobile and RFID systems
US8306525B2 (en) 2004-10-05 2012-11-06 Kamilo Feher UMTS wired and wireless mobile 2G, 3G, 4G, 5G and other new generations of cellular, mobile
US8055269B2 (en) 2004-12-28 2011-11-08 Kamilo Feher Time constrained signal MIMO wireless and wired communication method
US7885650B2 (en) 2004-12-28 2011-02-08 Kamilo Feher Adaptive coding and modulation with MIMO wireless and wired communication
US7693229B2 (en) 2004-12-28 2010-04-06 Kamilo Feher Transmission of signals in cellular systems and in mobile networks
US7548787B2 (en) * 2005-08-03 2009-06-16 Kamilo Feher Medical diagnostic and communication system
US7805143B2 (en) 2005-08-03 2010-09-28 Kamilo Feher Mobile video internet, cellular and location finder system
US7809374B2 (en) 2005-08-03 2010-10-05 Kamilo Feher Video mobile communication system
US7787882B2 (en) 2005-08-03 2010-08-31 Kamilo Feher Touch screen generated processed signals in multiple communication systems and networks
US8849313B2 (en) 2005-08-03 2014-09-30 Kamilo Feher Cable connected mobile video, cellular and Wi-Fi communications
US7877110B2 (en) 2005-08-03 2011-01-25 Kamilo Feher Cascaded 4G, 3G, 2G and other systems
US7783291B2 (en) 2005-08-03 2010-08-24 Kamilo Feher Touch screen multiple input multiple output (MIMO) multimode wireless communication
US7725114B2 (en) 2005-08-03 2010-05-25 Kamilo Feher Wi-Fi, GPS and MIMO systems
US7894810B2 (en) 2005-08-03 2011-02-22 Kamilo Feher Automobile wireless door opener and ignition starter by cellular device
US7720488B2 (en) 2005-08-03 2010-05-18 Kamilo Feher RFID wireless 2G, 3G, 4G internet systems including Wi-Fi, Wi-Max, OFDM, CDMA, TDMA, GSM
US7899491B2 (en) 2005-08-03 2011-03-01 Kamilo Feher Cross-correlated quadrature modulated spread spectrum, OFDM and position finder system
US7904041B2 (en) 2005-08-03 2011-03-08 Kamilo Feher Remote control, cellular, WiFi, WiLAN, mobile communication and position finder systems
US7917103B2 (en) 2005-08-03 2011-03-29 Kamilo Feher WLAN and wired mobile communication and location finding system
US7937094B2 (en) * 2005-08-03 2011-05-03 Kamilo Feher Wired and mobile wi-fi networks, cellular, GPS and other position finding systems
US7937093B2 (en) 2005-08-03 2011-05-03 Kamilo Feher Cellular and internet mobile systems and networks
US7949405B2 (en) 2005-08-03 2011-05-24 Kamilo Feher Cardiac stimulation control and communication system
US7978774B2 (en) 2005-08-03 2011-07-12 Kamilo Feher Internet GSM, CDMA, OFDM, Wi-Fi wireless and wired multimode systems
US7983678B2 (en) 2005-08-03 2011-07-19 Kamilo Feher 3G and Wi-Fi connected mobile systems
US7711368B2 (en) 2005-08-03 2010-05-04 Kamilo Feher VoIP multimode WLAN, Wi-Fi, GSM, EDGE, TDMA, spread spectrum, CDMA systems
US8311140B2 (en) 2005-08-03 2012-11-13 Kamilo Feher Infrared, CDMA and OFDM signal transmission methods
US8098753B2 (en) 2005-08-03 2012-01-17 Kamilo Feher Infrared, touch screen, W-CDMA, GSM, GPS camera phone
US8688142B2 (en) 2005-08-03 2014-04-01 Kamilo Feher Cellular video, Wi-Fi and spread spectrum system and method
US8112110B2 (en) 2005-08-03 2012-02-07 Kamilo Feher Phone video mobile internet television (TV) and cellular system
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US7466975B2 (en) * 2005-08-03 2008-12-16 Kamilo Feher GPS and non GPS position finder, emergency, MIMO, spread spectrum, CDMA, GSM and OFDM
US8189703B2 (en) 2005-08-03 2012-05-29 Kamilo Feher Television mobile internet system
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US20070032266A1 (en) * 2005-08-03 2007-02-08 Kamilo Feher GPS and non GPS position finder, emergency, MIMO, spread spectrum, CDMA, GSM and OFDM
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US8259822B1 (en) 2005-08-03 2012-09-04 Kamilo Feher Polar and quadrature modulated cellular, WiFi, WiLAN, satellite, mobile, communication and position finder systems
US20120224617A1 (en) * 2005-08-03 2012-09-06 Kamilo Feher Detection, communication and control in multimode cellular, TDMA, GSM, spread spectrum, CDMA, OFDM WiLAN and WiFi systems
US8351925B2 (en) 2005-08-03 2013-01-08 Kamilo Feher Digital television (TV), ship and other water based interactive communication methods
US8311509B2 (en) * 2005-08-03 2012-11-13 Kamilo Feher Detection, communication and control in multimode cellular, TDMA, GSM, spread spectrum, CDMA, OFDM WiLAN and WiFi systems
US8190143B1 (en) 2005-08-03 2012-05-29 Kamilo Feher TV internet and cellular mobile communication
US8085705B2 (en) 2005-08-03 2011-12-27 Kamilo Feher Web mobile systems
US7769386B2 (en) 2005-08-03 2010-08-03 Kamilo Feher MIMO polar, non-quadrature, cross-correlated quadrature GSM, TDMA, spread spectrum, CDMA, OFDM, OFDMA and bluetooth systems
US20080082786A1 (en) * 2006-10-02 2008-04-03 William Stuart Lovell Super-scalable, continuous flow instant logic™ binary circuitry actively structured by code-generated pass transistor interconnects
WO2008042186A2 (en) * 2006-10-02 2008-04-10 Lovell William S Information processing using binary gates structured by code-selected pass transistors
US7895560B2 (en) 2006-10-02 2011-02-22 William Stuart Lovell Continuous flow instant logic binary circuitry actively structured by code-generated pass transistor interconnects
WO2008042186A3 (en) * 2006-10-02 2008-09-25 William S Lovell Information processing using binary gates structured by code-selected pass transistors
US20090106535A1 (en) * 2007-10-17 2009-04-23 Chun-Nan Chen Shared processor architecture applied to functional stages configured in a receiver system for processing signals from different transmitter systems and method thereof
US8284820B2 (en) * 2007-10-17 2012-10-09 Mediatek Inc. Shared processor architecture applied to functional stages configured in a receiver system for processing signals from different transmitter systems and method thereof
US8275018B2 (en) 2007-10-18 2012-09-25 Mediatek Inc. Correlation device and method
US7885363B2 (en) 2007-10-18 2011-02-08 Mediatek Inc. Correlation device and method for different modulated signals
GB2456150B (en) * 2008-01-03 2010-04-07 Samsung Electronics Co Ltd Location system and method
GB2456150A (en) * 2008-01-03 2009-07-08 Samsung Electronics Co Ltd A transmitter providing a signal indicating a time difference between respective reference clocks of a first and second global navigation satellite system
US20090189808A1 (en) * 2008-01-28 2009-07-30 Mediatek Inc. Gnss data/pilot correlator and code generator thereof
US8111735B2 (en) * 2008-01-28 2012-02-07 Mediatek Inc. GNSS data/pilot correlator and code generator thereof
US20090207075A1 (en) * 2008-02-20 2009-08-20 Stuart Riley Sample decimation in a GNSS receiver
WO2009105338A2 (en) * 2008-02-20 2009-08-27 Trimble Navigation Limited Sample decimation in a gnss receiver
US7830993B2 (en) 2008-02-20 2010-11-09 Trimble Navigation Limited Sample decimation in a GNSS receiver
WO2009105338A3 (en) * 2008-02-20 2009-10-22 Trimble Navigation Limited Sample decimation in a gnss receiver
US20100099351A1 (en) * 2008-10-22 2010-04-22 Chieh-Chao Liu Receiver applying channel selection filter for receiving satellite signal and receiving method thereof
US8412093B2 (en) * 2008-10-22 2013-04-02 Mediatek Inc. Receiver applying channel selection filter for receiving satellite signal and receiving method thereof
KR101377427B1 (en) 2008-11-25 2014-03-21 퀄컴 인코포레이티드 Reconfiguring the available satellite positioning system receiver
JP2015057602A (en) * 2008-11-25 2015-03-26 クゥアルコム・インコーポレイテッドQualcomm Incorporated Reconfigurable satellite positioning system receivers
WO2010068456A1 (en) 2008-11-25 2010-06-17 Qualcomm Incorporated Reconfigurable satellite positioning system receivers
US20100279732A1 (en) * 2009-05-04 2010-11-04 Mikael Hjelm Squaring Loss Inhibition for Low Signal Levels in Positioning Systems
US8547950B2 (en) * 2009-05-04 2013-10-01 Infineon Technologies Ag Squaring loss inhibition for low signal levels in positioning systems

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KR100838807B1 (en) 2008-06-17 grant
US7286592B2 (en) 2007-10-23 grant
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